How to Check the Size of Windows 10 and Windows 11 Updates

Windows 10 and Windows 11 updates often bring critical bug fixes and security enhancements, but they can also consume a significant amount of disk space. Knowing the size of an update in advance can be helpful, especially if you have limited internet bandwidth or storage space on your device. Let’s explore several methods to find out the size of a Windows update.

1. Using Windows Update Settings

The easiest way to check the size of an update is through the Windows Update settings:

Open Settings (press Win + I).
Navigate to Update & Security.
Select Windows Update and click on Check for updates.
If an update is available, its size might be displayed next to the update name.

However, not all updates show their size directly in the Windows Update section. In such cases, you can try other methods.

2. Using Microsoft Update Catalog

The Microsoft Update Catalog is an official website where you can find detailed information about updates:

Go to the Microsoft Update Catalog website.
Enter the update number (KB number) that you want to check.
The search results will include detailed information, including the update size.

This method is particularly useful if you already know the update number and want to find out its exact size before installation.

3. Using DISM Command Line Tool

DISM (Deployment Imaging Service and Management Tool) is a command line utility that allows you to check for updates and retrieve information about them:

DISM /Online /Get-Packages /Format:Table

This command displays a list of installed updates along with their sizes. However, for updates that have not yet been installed, this method may not always provide accurate data.

4. Using Third-Party Software

There are third-party tools like Patch My PC or WSUS Offline Update that can show detailed information about updates, including their sizes. These tools are especially useful if you need to manage updates across multiple devices or have limited internet bandwidth.